Method and apparatus for recording one-step, full-color, full-parallax, holographic stereograms
US6330088A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 17, 1998 |
| Grant date | Dec 11, 2001 |
| Priority date | — |
| Expiry date | Jun 17, 2018 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03H2001/2695
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
The present invention concerns methods and devices for creating and printing variable size and variable resolution holographic stereograms and holographic optical elements using computer rendered images of three-dimensional computer models or using computer processed images. The present invention is an apparatus and method for printing one-step, full-color, full-parallax holographic stereograms utilizing a reference beam-steering system that allows a reference beam to expose a holographic recording material from different angles. More particularly, a coherent beam is split into object and reference beams. The object beam passes through an object beam unit in which a rendered image is displayed, while the reference beam passes through the reference beam-steering system. The object and reference beams interfere with each other at an elemental hologram on a holographic recording material. A computer controls the exposure time and the movement of the recording material and may also render the images displayed in the object beam unit. In addition, the computer may also store the images before they are displayed in the object beam unit. Also, the present invention may also utilize a voxe…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.